So far, so good - we’re big fans do this planter cat little box! The cats seem to be enjoying it and it is definitely big enough for our extra large boy. It is not the largest of the planter style cat box but the liner fits in, and stays in, well with the slide-in pegs rather than other brands that use Velcro. We have another brand and the velcro has started to peel from the edge which is causing more mess. I’m not exactly sure what the sanitizing fan component does but we’ll see!